45results about How to "Maintain structural stability" patented technology

A refrigerator using a vacuum heat insulation material is disclosed. The refrigerator includes a door including a space part having a predetermined volume and a housing having a hole to allow communication between inner and outer sides of the space part, wherein the space part includes, as a core material, an open cell polyurethane foam formed by a foam material injected via the hole to fill the space part.

A sliding bearing arrangement for a wind turbine and a method to service the bearing is provided. A sliding bearing arrangement of a wind turbine includes a first shaft and a second shaft, whereby a first radial sliding bearing is arranged between the shafts. The first radial sliding bearing includes bearing pads. The first shaft includes a collar, whereby the collar is arranged mainly perpendicular to the axis of rotation, and radially overlaps at least a part of a radial surface of the second shaft. The collar includes an opening to exchange the bearing pads of the first radial sliding bearing of the bearing arrangement.

The present invention relates to a soluble polypeptide comprised of repeat modules. More particularly, the present invention relates to a soluble fusion polypeptide of the N-terminal domain of internalin and LRR (Leucine rich repeat) family protein, a method for preparing the polypeptide, a vector comprising a nucleic acid sequence encoding the polypeptide, a host cell comprising the vector, a method for producing a solubility and folding-improved fusion polypeptide by expressing the vector in the host cell, and a method for improving the solubility and folding of the fusion polypeptide. Further, the present invention relates to a method for preparing the polypeptide bound with a specific target and analyzing the efficacy of the soluble polypeptide.

The preparation process of emulsive interpenetrating thermoplastic elastomer includes synthesis of slightly cross-linked rubber elastomer seed emulsion, synthesis of interpenetrating emulsion, agglomeration, drying and mixing pelletizing. The synthesis of rubber elastomer seed emulsion includes two steps. Cross-linking vinyl monomer with certain bifunctional degree and multifunctional degree is mixed into the seed emulsion monomer and the consumption of cross-linking agent is controlled to obtain rubber elastomer seed emulsion with controlled and low cross-linking degree. Into the seed emulsion, thermoplastic vinyl monomer with mixed acrylonitrile is dropped while adding certain amount of emulsifier, and through swelling, initiating polymerization and other courses, the emulsive interpenetrating polymer with proper cross-linking degree is obtained, which is further processed into emulsive interpenetrating thermoplastic elastomer agglomerate.

A bi-alloy spacer grid (BASG) is provided with grid straps and springs made using different zirconium alloys. The grid straps are made from a relatively low growth zirconium alloy, and the springs are made from a relatively high growth zirconium alloy. The springs are coupled to the grid straps by welding, mechanical interference, or secondary forming in place. When subjected to irradiation, the springs grow relative to the grid straps thereby maintaining contact with the fuel rod cladding, while the grid straps resist growth to maintain structural stability of the entire fuel assembly. The optimized balance of the high growth springs and low growth grid straps mitigates the formation of gaps between the fuel rods and grid support structures). The growth properties of the grid straps and springs may be further controlled through optional different fabrication processes.

An internal magnetic resistance system for use with a fitness device includes an axle, inertia wheel, transmission wheel, magnetic permeable ring and electromagnet. The inertia wheel is disposed at the axle and has a protruding ring portion. The transmission wheel connects to the inertia wheel and transfers an external force to the inertia wheel to cause the inertia wheel to rotate. An outer circumferential surface of the magnetic permeable ring is fixedly disposed on an inner circumferential surface of the protruding ring portion such that the magnetic permeable ring rotates together with the inertia wheel. The electromagnet is disposed in the protruding ring portion and surrounded by the magnetic permeable ring. The electromagnet has a support fixedly disposed at the axle and iron cores disposed at the support. Each said iron core is surrounded by a coil and separated from the magnetic permeable ring by a gap.

The invention discloses a high-Mo-content biomedical beta-titanium alloy and a preparation method thereof. The alloy comprises three alloy elements including titanium (Ti), molybdenum (Mo) and stannum (Sn). Alloy components of the alloy comprise, by weight percent, 20%-60% of the molybdenum (Mo), 0-20% of the stannum (Sn) and the balance titanium (Ti). The alloy is prepared through a high-temperature melting method, an electric arc melting method, a powder metallurgic method, a high-frequency induction method or a mechanical alloy method. The alloy has the following beneficial effects that the alloy elements including molybdenum and stannum completely compatible with the human body are selected, excellent biocompatibility is achieved, and toxicity is avoided; and the elasticity modulus is low (E=50-60 GPa) and is lower than that of a Ti-6Al-4V alloy by 40%-50%. The alloy can be used as a biomedical titanium alloy for dentistry and is mainly used for clinic mouth rehabilitation, implanting, orthodontics and the like.

The invention discloses a refrigerator door seal adhesive tape with a strong sealing effect. The refrigerator door seal adhesive tape comprises a sucking cavity, a gas cavity group, a fixed beam and afixed cavity, wherein the sucking cavity is equipped with an extruding rib to guarantee tight contact between a magnetic stripe and a sucking surface; an outer gas cavity, a middle gas cavity and aninner gas cavity of the gas cavity group are separated by S-shaped ribs; the outer gas cavity is equipped with a spring shaped buffer section for strengthening deformation compensation effect, in thevertical direction, of a door seal; an inclined corrugated section is designed on the top of the inner gas cavity, so that multi-point contact sealing between the door seal and a box body is realized;a gradual-expansion type umbrella-shaped auxiliary gas cavity can be arranged at the right upper corner of the inner gas cavity to effectively match gradual expansion characteristics of a gap; long flying sides are designed at the two sides of the fixed beam, so that an extra gas cavity can be formed with a door body; and the fixed cavity is equipped with inverted-V-shaped ribs and dual-J-shapedribs for compensating groove gap processing errors. The door seal adhesive tape is good in elastic compensation, is good in structural stability, and can effectively strength the sealing and heat-insulating effects of a refrigerator door seal part.

A multi-scaled oxygen storage material wherein cobalt element is complexed with a size of an atom or hundreds of nanometers or smaller in a ceria-zirconia solid solution and a method for preparing the same are provided.

Specifically, The multi-scaled oxygen storage material contains a ceria-zirconia solid solution, a cobalt dopping contained in the solid solution in the form of an atom and a cobalt-based nanocluster dispersed in the solid solution as cobalt oxide and exhibits a microstructure distinguished from that of the existing ceria-zirconia (CZO)-based oxygen storage material as well as remarkably improved oxygen storage and release ability, and the method for preparing the same is provided.

A simple optical fiber cladding light stripping structure relates to the technical field of optical fiber devices. The simple optical fiber cladding light stripping structure comprises a scattering surface which is formed on an outer surface of an optical fiber cladding by destroying the outer surface. The optical fiber cladding light stripping structure further comprises a light-transmitting heatdissipation sleeve which is provided with a hole channel running through the front and back of the sleeve. An optical fiber penetrates through the hole channel, so that the heat dissipation sleeve sleeves the outer side of the scattering surface. The heat dissipation sleeve is fixed to the optical fiber, and a gap is formed between the heat dissipation sleeve and the scattering surface. The heatdissipation sleeve comprises at least two splicing pieces. The heat dissipation sleeve is formed by splicing the at least two splicing pieces, so that the heat dissipation sleeve can sleeve the outerside of the scattering surface without cutting off the optical fiber. A rough scattering surface is formed, so that the total reflection condition of cladding light transmission is destroyed, claddinglight can be refracted or scattered out of the cladding, and cladding light stripping is realized. No medium (such as high-refractive-index glue) which is easy to thermally damage is used on the scattering surface (an area which is easy to heat), and the heat bearing capacity is greatly improved.

The invention provides a method for treating an inorganic solid electrolyte by using a phosphorus-containing organic substance. According to the method, an inorganic solid electrolyte is treated in anon-aqueous system by using phosphorus in an organic compound, so that side effects of water on the inorganic solid electrolyte are completely avoided, the phosphorus-containing organic substance is uniformly distributed on the surface of the inorganic solid electrolyte through a liquid-phase mixing or in-situ polymerization scheme; and the phosphorus reacts with residual lithium on the surface athigh temperature to consume the residual lithium on the surface during subsequent high-temperature calcination. The structure stability and excellent lithium ion conductivity of the inorganic solid electrolyte are kept through adjusting the concentration of the phosphorus-containing organic substance, and meanwhile, the residual lithium on the surface of the solid electrolyte is reduced. The phosphorus-containing organic compound utilized in the method is wide in source and low in cost. By adopting a liquid phase method, the method provided by the invention is mild in condition, simple and effective in process and easy for industrialized production. The method is a first application of the phosphorus-containing organic substance in the solid electrolyte and has a broad application prospect in the inorganic solid electrolyte material.

The invention relates to a polythiophene-coated single crystal NCM ternary material, and belongs to the field of chemical energy storage batteries. The preparation method comprises the following steps: firstly, dispersing a thiophene monomer in an organic solvent, and then adding a single-crystal NCM ternary material for dispersion; adding an oxidizing agent into the turbid liquid, and oxidizing in an ice-water bath environment to finally prepare the polythiophene coated single crystal NCM ternary material. The polythiophene has the characteristics of a conductive polymer; the polythiophene is coated on the surface of the single crystal NCM ternary material, so that the lithium ion diffusion obstruction under a relatively long migration path can be reduced, the electronic conductivity of the single crystal NCM material is further enhanced, and the electrochemical reaction process and charge transmission on the surface of the material are accelerated. Thus, the polarization phenomenon and the voltage drop of the material in the charge-discharge cycle process are reduced, and the cycle stability of the material is improved. In addition, the polythiophene coating layer can also isolate the contact between the electrolyte and the single crystal NCM material, so that the side reaction of the interface is reduced.

The invention discloses a hole decoration board design and arrangement method based on a circular pile. The method comprises the following steps: (1) importing a customized image, adjusting the imagesize according to the customized pattern and converting the image into a grayscale image; (2) segmenting the grayscale image so as to obtain the core image region and blank the background image; (3) calculating the circle radius range of the corresponding punch hole diameter standard series according to the characteristics of the circular pile with combination of different mechanical structure requirements; (4) calculating the geometric center of the foreground image as the starting point; (5) establishing a polar coordinate system according to the starting point in the step (4), obtaining theaxial diameter from the maximum distance and searching for the next point; (6) calculating the polar angle rotation angle from the distance and pre-determining the coordinates of the next point; (7)adjusting the coordinates of the point; (8) cycling step (6) and step (7) to complete filling of the region and the boundary; (9) and generating machining process information through statistics and machining by using the machining process information through the numerical control machine tool. The design and arrangement method of the art punching decoration board with randomness can be realized byvirtue of the characteristics of the circular pile and the polar coordinate point selection method so as to ensure the structural rigidity and stability of the board and improve the visual art effectof the board.

The invention belongs to the field of lithium ion battery negative electrode materials, and particularly relates to a silicon oxide, and a preparation method and an application thereof. The preparation method comprises the following steps: removing an original passivation layer on a silicon surface through surface treatment to expose a fresh silicon surface, and carrying out controllable oxidation on the fresh surface in an oxidation environment to obtain the silicon oxide. According to the oxidation of the silicon-based material in the silicon oxide material, firstly, the original passivation layer on the silicon surface is removed through a ball-milling crushing or acid pickling or alkali etching method so that the fresh surface is exposed, and the controllable oxidation is carried out in a mild oxidation environment by utilizing the high reaction activity of the fresh surface. By regulating and controlling the oxidation degree of the silicon-based material, the material has a relatively high capacity and relatively good cycling stability, and the problems of high preparation cost, high energy consumption and high uncontrollability of the traditional silicon oxide are solved.

The invention discloses an artificial joint with a stable structure lubricating layer and a preparation method of the artificial joint. The artificial joint consists of the stable structure lubricating layer and a titanium alloy substrate, wherein the stable structure lubricating layer is a polymer layer. The preparation method of the stable structure lubricating layer comprises the following steps: (1) preparing a polymer solution; (2) performing hydroxylation treatment on the titanium alloy substrate; and (3) preparing a chemical cross-linked polymer coating. The invention provides the artificial joint with the stable structure lubricating layer and the preparation method of the artificial joint. The artificial joint has excellent anti-wear and anti-friction functions, the tribological performance can be improved, and the service life of the artificial joint is prolonged.

The invention belongs to the technical field of electrode materials, and particularly relates to a lithium cobalt oxide material and a preparation method thereof, a positive plate and a lithium ion battery, the lithium cobalt oxide material comprises a lithium cobalt oxide core and a coating layer coating the outer surface of the lithium cobalt oxide core, and the coating layer comprises lithium niobium oxide and cobaltosic oxide. According to the lithium cobalt oxide material disclosed by the invention, a coating layer with good uniformity is formed on the surface of lithium cobalt oxide in situ by utilizing a high-temperature solid-phase reaction, the coating layer with a compact and stable structure is provided, the coating uniformity is good, the ionic conductivity is good, and the rate and the cycle performance of a positive electrode material are effectively improved.

In order to solve the problem of cycle performance reduction caused by manganese ion dissolution and electrolyte decomposition of the existing lithium nickel manganese oxide battery, the invention provides a lithium ion battery, the lithium ion battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte, the positive electrode comprises a positive electrode material layer, and the positive electrode material layer comprises a lithium nickel manganese oxide material as shown in a formula I and a compound as shown in a formula II; the formula I of LiNixMn2-xO4 is shown in the specification, wherein x is more than 0 and less than 2; the non-aqueous electrolyte comprises a non-aqueous organic solvent, electrolyte salt and a first additive, and the first additive comprises boron-containing lithium salt; the lithium ion battery satisfies the following conditions: 0.1 < = (a + b) * m < = 5; 0.005 < = a < = 1, 0.01 < = b < = 3, and 1 < = m < = 3. The lithium ion battery provided by the invention can maintain the stability and oxidation resistance of the high-voltage lithium nickel manganese oxide structure under the condition of relatively high energy density, and obviously inhibits the decomposition reaction of the electrolyte, so that the cycle performance of the battery is improved.